Multiple DC, single AC converter with a switched DC transformer
AssigneeBattelle Memorial Institute
InventorsMatthew K. Donnelly, Donald J. Hammerstrom
Life of this patent
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Abstract
The invention is an improvement of the PASC inverter, wherein the improvements include the reduction from two shorting gates per transformer to one shorting gate per transformer and replacement of active control of the shorting gate with passive control of the shorting gate. Further advantages are obtained through the use of anti-parallel gate sets.
Claims13
A converter having at least two switched DC transformers, said switched DC transformers each having two primary coils connected to at least one DC power line, and having a single secondary coil, wherein said two primary coils of each transformer are in parallel to each other, and said secondary coil of each transformer is in series with an other transformer secondary coil, said converter further having a power injection gate in series with each of said primary coils, wherein the improvement comprises:
- (a) only one shorting gate on each transformer;
- and
- (b) each of said single shorting gates is a single anti-parallel shorting gate, and each power injection gate is an anti-parallel power injection gate.
Dependencies are inferred from the claim text.